we hada butt ton of visitors after our first - an emergency c/s - withour second we didn't tell them when it was happening and called after we were situtated
I work on a maternity floor and i often see women get overwhlemed by visitors - so If you know now you don't want them there tell them - yes the ywill be dissapointed but they'll get over it - and you deserve to have that time with your baby